How do I solve this math question? 2x^2(-3x^2)^4

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We have

`2x^2(-3x^2)^4`

We know that `(ab)^m=a^mb^m ,(a^m)^n=a^(mn),and a^mxxa^n=a^(m+n)`

Thus

`2x^2(-3x^2)^4=2x^2(-3)^4(x^2)^4`

`=2xx81xx x^2 xx x^(2xx4)`

`=162x^(2+8)`

`=162x^10`

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